Rupes Altai

2 years 2 weeks ago #106653 by flt158
Rupes Altai was created by flt158
Hi everyone.
I have just been observing Rupes Altai right on the terminator.
It should be stunning after dark.
It is positioned coming out of the large crater Piccolomini.

Clear skies,
Aubrey.
The following user(s) said Thank You: Keith g, michael_murphy, Fermidox, scfahy

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2 years 2 weeks ago #106654 by flt158
Replied by flt158 on topic Rupes Altai
Well -how are you all?
I hugely enjoyed observing Rupes Altai on Tuesday night especially from 10 pm local time. It was a beautiful sight at 112X in my 158 mm William Optics apo.
I have since studied images on Google, and I reckon half of Rupes Altai was visible on the Moon's terminator. Its entire length is 480 kilometres long. Seeing the mountain range heading into the blackness of the Lunar surface was very dramatic indeed. Earthshine was visible too after 11 pm. The highest peaks are 1 kilometre high and this most certainly caused the Sun's light to shine on these peaks whilst the lunar floor lay in the darkness.
Piccolomini looked very good with its very large central peak.
So did anyone else see this wonderful event? Did anyone image it? Perhaps you could share it with us on this website. Thank you.

Good seeing,
Aubrey.

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2 years 2 weeks ago #106655 by Keith g
Replied by Keith g on topic Rupes Altai
Hi Aubrey, thanks for this, I will try to look out for this feature next time it's visible, it's been a while since I had a look at good 'ol Luna

Keith..

If a telescope can fit into your backyard it's too small. If you can't move it, it's too big." -- John Dobson
The following user(s) said Thank You: flt158

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2 years 2 weeks ago - 2 years 2 weeks ago #106656 by flt158
Replied by flt158 on topic Rupes Altai
It is great to hear from you, Keith.
I have been observing our Moon for over 30 years.
I have never seen Rupes Altai on the terminator in all that time.
I wonder when we shall it look like this again.

Aubrey.

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